Hello, i created a simple app in MIT app inventor that should connect to my hc-05 (under name "LINE_AVOIDER", i change it) but it fails with error 507 and i dont know why. Here are some pictures: [34f68b26-695c-4d1e-9fa2-f15ee8ffd271] [obraz_2025-12-07_013020204] [Zrzut ekranu 2025-12-07 01295…

OK GUYS I FOUND THE ISSUE! I used BluetoothLE extention with some simple code and it connected succesfully. If anyone else has this problem link them this post. Example block code (you need to remember MAC address but it works): [obraz_2025-12-07_204952321] extension i used: https://www.profes…

HC-05 bluetooth not working

MIT App Inventor Help

Taifun December 7, 2025, 1:09pm 6

How to correctly ask for Bluetooth permissions see here

Taifun